|Publication number||US6959192 B1|
|Application number||US 09/705,694|
|Publication date||Oct 25, 2005|
|Filing date||Nov 6, 2000|
|Priority date||Nov 6, 2000|
|Also published as||EP1338154A2, EP1338154A4, WO2002039210A2, WO2002039210A3|
|Publication number||09705694, 705694, US 6959192 B1, US 6959192B1, US-B1-6959192, US6959192 B1, US6959192B1|
|Inventors||Joseph M. Cannon, James A. Johanson|
|Original Assignee||Agere Systems Inc.|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (9), Referenced by (77), Classifications (12), Legal Events (7)|
|External Links: USPTO, USPTO Assignment, Espacenet|
1. Field of the Invention
The present invention relates generally to portable electronic devices, and more particularly to a method and system for updating stored information in the portable electronic devices based on the geographic location of the electronic devices.
2. Description of the Related Art
In recent years, public use of portable electronic devices, such as for example wireless communication devices, i.e., cell phones, personal data assistants (PDAs), personal computers, and the like, have increased greatly. Because of their mobility, such devices must be light and compact. A user needs to be able to comfortably carry the device in a pocket, purse or briefcase. Many of these devices are typically provided with several user friendly functions, such as for example scheduling assistants, stored phone numbers for speed dialing, clocks, calendars and the like.
Despite all of the technological advancements, such portable electronic devices are not without their shortcomings. For example, while many of the electronic devices allow a user to program certain information, such as frequently dialed telephone numbers, important meeting reminders, etc. into the memory for later rapid dialing or notification, this programming function must be performed manually. Manual programming of the electronic device can take time and requires the user to remember how to perform the steps required to carry out the programming function.
The user can refer to the device's user manual to determine the steps required to properly program the desired information into the device. This, however, is not preferred since these manuals are rarely, if ever, carried around with the device.
The problem of updating or reprogramming information stored in the portable electronic devices is further exacerbated if the user often travels outside of his local geographic region. For example, the telephone numbers stored in the speed dial function typically assume the call will be made within the user's typical local area and therefore generally are not provided with an area code. If the user travels outside of his local area and into a different area code or country, the speed dial function will no longer work as the area code and possibly a country code will be required to place the call.
Additionally, as global travel becomes more prevalent, other functions provided by the portable electronic devices will also be compromised unless the devices are updated or reprogrammed. For example, when the user travels to a different country or time zone, not only will the speed dial numbers no longer operate correctly but the clock and/or calendar functions will also be incorrect due to the time zone change. As noted above, the updating of the stored information and/or operating systems of the electronic device must be performed manually, which requires time and effort on the part of the user.
Thus, there exists a need for a system and method that will automatically update stored information in portable electronic devices based on the geographic location of the electronic device.
The present invention overcomes the problems associated with the prior art and provides a unique method and system for updating stored information in portable electronic devices based on the geographic location of the electronic device.
In accordance with one aspect of the present invention, portable electronic devices are provided with built-in transceiver modules which will automatically communicate with base stations provided at centralized high traffic locations, such as for example airports, train stations, bridges, toll booths, bus stations, etc. The base stations transmit low power radio signals to the portable devices that contain commands for the devices to update information stored in the portable devices based on the geographic area, such as for example updating to a new telephone area code or time zone. Accordingly, the portable electronic devices will work seamlessly in the new location without any manual intervention required by the user.
In accordance with another aspect of the invention, a global positioning satellite (GPS) system can be utilized to automatically set the transceiver modules in the portable electronic devices to the proper frequency at which the base stations are transmitting thereby ensuring a communication link between the base station and the portable electronic device.
In accordance with another aspect of the invention, a GPS system is used to update information stored in portable electronic devices based on the location of the device as determined by the GPS system.
These and other advantages and features of the invention will become apparent from the following detailed description of the invention which is provided in connection with the accompanying drawings.
The present invention will be described as set forth in the preferred embodiments illustrated in
In accordance with the present invention, stored information in portable electronic devices is updated based on the geographic location of the electronic device.
As illustrated in
A plurality of base stations 12, such as for example base stations 12 a and 12 b of
In accordance with the present invention, if device 20 crosses time line 18 to a different time zone and an area served by a different area code, base station 12 b will automatically communicate with device 20, causing device 20 to update location dependent information stored in memory 30. For example, suppose all information stored in memory 30 of device 20, such as for example telephone numbers, appointments, etc., is stored based on the device being located in a home location, such as for example in the eastern time zone and a specific area code. If device 20 crosses time line 18 and thus enters to a location in a different time zone and/or served by a different area code, radio signals from base station 12 b will be received by device 20 when device 20 is within range of base station 12 b. As noted above, the radio signals from base station 12 b include the area code and time zone of the geographic region in which base station 12 b is situated. When the signals from base station 12 b are received by transceiver 22, the information contained in the radio signals is provided to the microprocessor 16 which can then update information stored in memory 30. For example, the system clock could be reset to the new time zone, thereby ensuring that any appointment reminders are still correct. Additionally, if a date line is crossed, the system date would also be updated.
With respect to telephone numbers stored in memory 30 of device 20, when transceiver 22 sends a signal to processor 26 indicating device 20 has entered a location served by a different area code, processor 26 can reference a look-up table in memory 30 to provide a new set of speed dial numbers in which the area code is also provided. For example, suppose all telephone numbers stored in memory 30 are stored with the assumption that the calls will always be made from the same area code which serves those numbers. Thus, the numbers will be stored as seven digit numbers, as the area code is generally not necessary when making local calls. When device 20 enters an area served by a different area code, it will now be necessary to dial the area code prefix along with the seven digit numbers stored in the memory 30. The area code for the telephone numbers stored in memory 30 can also be stored in a look-up table in memory 30 and inserted into the speed dial numbers when device 20 enters an area served by a different area code.
It should be understood that updating of the telephone numbers stored in memory 30 is performed independently of updating the system clock and calendar of device 20. Thus, the present invention is not limited to crossing only a time line, but is also equally applicable to areas served by different area codes or different country codes.
In order for each base station 12 to be able to communicate with any portable device 20 provided with a transceiver 22, it is necessary to establish a certain protocol for these devices. One exemplary protocol is known as Bluetooth™. Bluetooth™ is a radio frequency standard that describes how portable electronic devices, such as wireless telephones, PDAs, and personal computers, can easily interconnect with each other and with home and business phones and computers using a short-range wireless connection. The Bluetooth™ specification ensures that diverse devices supporting the Bluetooth™ technology can communicate with each other worldwide. The Bluetooth™ protocol allows for the automatic connections between the devices without any user intervention. Thus, when Bluetooth™ equipped devices come within range of one another, such as for example when device 20 comes in range of base station 12 b, the device 20 and base station 12 b will communicate with each other via a radio frequency link to determine if they have information to share or whether one needs to control the other. In accordance with the present invention, base station 12 b will share information concerning the local time zone, date, area code, etc. in which base station 12 b is situated. Device 20, upon receiving this information from base station 12 b, will update any information stored in memory 30 that might be affected by the change in location of device 20 as previously described.
Thus, in accordance with the present invention, stored information in portable electronic devices is automatically updated based on the geographic location of the electronic device.
As previously noted, the use of the present invention is applicable to when a portable electronic device travels into a geographic location in a new time zone or a new country. If the Bluetooth™ protocol is utilized, it will be necessary to update the country code within the Bluetooth™ transceivers in the electronic devices to ensure the devices are operating on the proper frequencies. Bluetooth™ utilizes a technique called spread-spectrum frequency hopping, in which multiple randomly chosen frequencies within a designated range are utilized, with the chosen frequency changing on a regular basis. By regularly changing the frequencies within the given range, Bluetooth™ devices are prevented from interfering with one another as it is unlikely that more than one device within range will be on the same frequency at the same time. In Bluetooth™, the transmitters change frequencies 1,600 times every second. When an initial conversation between Bluetooth™ devices has occurred, such as for example between a device 20 and base station 12 b of
The Bluetooth™ standard specifies the frequencies and number of channels at which the devices will communicate. The channel spacing is 1 MHz, and a guard band, typically several MHz wide, is provided at the upper and lower band edge. In addition, each country or specified groups of countries are given a unique code. The country codes and the corresponding frequencies for some countries are listed in Table 1 below.
Frequency Range (MHz)
No. of Channels
US and Europe
Any device equipped with Bluetooth™ must update its country code when it passes from one country to another in order to properly work, and additionally so that it will not violate any type of local regulations regarding transmission frequencies, such as for example FCC regulations in the US.
In accordance with another aspect of the present invention, a global positioning satellite (GPS) system can be utilized to automatically set Bluetooth™ devices to the proper country code, and hence corresponding proper frequencies, for that country.
GPS systems are used to determine or fix the position of a receiver using signals transmitted simultaneously from several satellites. As illustrated in
Thus, suppose for example device 40 is crossing over border 48 from one country to another, such as for example France to Spain. When device 40 is in Spain and operating according to the Bluetooth™ specification, it will be utilizing the frequency range of 2445–2475 MHz associated with country code 01 for Spain. When device 40 crosses border 48 into France, GPS receiver will provide the geographic position of device 40 to transceiver 22, which can then determine that device 40 has moved into a new country, such as for example by a look-up table that stores longitude and latitude data with respect to country location, and transceiver 22 can automatically update the country code to 02 for France and adjust its operating frequency to 2446.5–2483.5 MHz. Device 40 can then establish a communication with base station 12 b and information stored in memory 30 of device 40 can be updated by signals from base station 12 b as described with respect to
Thus, in accordance with the present invention, a global positioning satellite (GPS) system can be utilized to automatically set Bluetooth™ devices to the proper country code, and hence corresponding proper frequencies, for that country.
As illustrated in
While the invention has been described with respect to information stored in a portable electronic device being automatically updated when the portable electronic device enters a new geographic location, the invention is not so limited. For example, it may be desired for the information stored in the electronic device to be updated only at certain times. Accordingly, the automatic update feature could be disabled by a user, and the user could select when an update should occur by enabling the automatic update feature of the present invention. Additionally, the portable electronic device could be provided with an indicator 70, such as for example an LED or speaker to provide an audible tone, indicating that information received from a base station or GPS system necessitates an update to stored information. For example, when processor 26 determines that the information stored in memory 30 should be updated based on information received from transceiver 22, it will activate indicator 70. A user could then select whether or not to have the stored information updated by processor 26 activating a control button 72 on the electronic device.
Reference has been made to preferred embodiments in describing the invention. However, additions, deletions, substitutions, or other modifications which would fall within the scope of the invention defined in the claims may be implemented by those skilled in the art and familiar with the disclosure of the invention without departing from the spirit or scope of the invention. Accordingly, the invention is not to be considered as limited by the foregoing description, but is only limited by the scope of the appended claims.
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|U.S. Classification||455/456.3, 455/414.1|
|International Classification||H04L12/56, G06F17/30, H04W8/20, H04W8/24, H04W4/02|
|Cooperative Classification||H04W8/245, H04W8/205, H04W4/02, Y02B60/50|
|Nov 6, 2000||AS||Assignment|
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